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A fast lexical analyzer generator.

flex is a tool for generating scanners: programs which recognized lexical patterns in text. flex reads the given input files for a description of a scanner to generate. The description is in the form of pairs of regular expressions and C code, called rules. flex generates as output a C source file, lex.yy.c, which defines a routine yylex(). This file is compiled and linked with the -lfl library to produce an executable. When the executable is run, it analyzes its input for occurrences of the regular expressions. Whenever it finds one, it executes the corresponding C code.

This product includes software developed by the University of California, Berkeley and its contributors.

Package version:2.5.4a-2


This is release 2.5 of flex.  See "version.h" for the exact patch-level.

See the file "NEWS" to find out what is new in this Flex release.

Read the file "INSTALL" for general installation directives.  Peek near
the beginning of the file "" for special DEFS values.  On most
systems, you can just run the "configure" script and type "make" to build
flex; then "make check" to test whether


Changes between release 2.5.4 (11Sep96) and release 2.5.3:

	- Fixed a bug introduced in 2.5.3 that blew it when a call
	  to input() occurred at the end of an input file.

	- Fixed scanner skeleton so the example in the man page of
	  scanning strings using exclusive start conditions works.

	- Minor Makefile tweaks.

Changes between release 2.5.3 (29May96) and release 2.5.2:

	- Some serious bu


FLEX(1)                                                      FLEX(1)

       flex - fast lexical analyzer generator

       flex  [-bcdfhilnpstvwBFILTV78+?  -C[aefFmr] -ooutput -Pprefix
       -Sskeleton] [--help --version] [filename ...]

       This manual describes flex, a tool  for  generating  programs
       that  perform  pattern-matching on text.  The manual includ


flex (2.5.4a-2) unstable; urgency=low

  * Added a man page for flex++ (actually, a symlink to flex)


This is the Debian GNU/Linux prepackaged version of flex, the GNU lexical
analyzer generator.


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